| Message ID | 20230802191153.952667-2-hugo@hugovil.com |
|---|---|
| State | Rejected |
| Headers | show |
| Series | rtc: pcf2127: add default battery-related power-on values | expand |
Hey Hugo, On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > These properties can be defined in the board's device tree to set the > default power-on values for battery-related functions. > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > --- > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > index efb66df82782..0217d229e3fa 100644 > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > @@ -26,6 +26,25 @@ properties: > 0: not chargeable > 1: chargeable > > + battery-low-detect: > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [0, 1] > + description: | > + For RTC devices supporting a backup battery/supercap, this flag can be > + used to configure the battery low detection reporting function: > + 0: disabled > + 1: enabled > + > + battery-switch-over: > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [0, 1] > + description: | > + For RTC devices supporting a backup battery/supercap, this flag can be > + used to configure the battery switch over when the main voltage source is > + turned off: > + 0: disabled > + 1: enabled Why are these implemented as enums? This seems to fall into the category of using DT to determine software policy - why's it not sufficient to have boolean properties that indicate hardware support and let the software decide what to do with them? Thanks, Conor. > + > quartz-load-femtofarads: > description: > The capacitive load of the quartz(x-tal), expressed in femto > -- > 2.30.2 >
On Tue, 8 Aug 2023 12:21:24 +0100 Conor Dooley <conor@kernel.org> wrote: > Hey Hugo, > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > These properties can be defined in the board's device tree to set the > > default power-on values for battery-related functions. > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > --- > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > 1 file changed, 19 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > index efb66df82782..0217d229e3fa 100644 > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > @@ -26,6 +26,25 @@ properties: > > 0: not chargeable > > 1: chargeable > > > > + battery-low-detect: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [0, 1] > > + description: | > > + For RTC devices supporting a backup battery/supercap, this flag can be > > + used to configure the battery low detection reporting function: > > + 0: disabled > > + 1: enabled > > + > > + battery-switch-over: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [0, 1] > > + description: | > > + For RTC devices supporting a backup battery/supercap, this flag can be > > + used to configure the battery switch over when the main voltage source is > > + turned off: > > + 0: disabled > > + 1: enabled > > Why are these implemented as enums? This seems to fall into the category > of using DT to determine software policy - why's it not sufficient to > have boolean properties that indicate hardware support and let the software > decide what to do with them? Hi Conor, the reason is that I based the new properties on the existing property "aux-voltage-chargeable": ------------------- aux-voltage-chargeable: $ref: /schemas/types.yaml#/definitions/uint32 enum: [0, 1] description: | Tells whether the battery/supercap of the RTC (if any) is chargeable or not: 0: not chargeable 1: chargeable ------------------- I agree with you that a boolean would be more appropriate. Should I also submit a (separate) patch to fix the "aux-voltage-chargeable" property to a boolean? Hugo. > Thanks, > Conor. > > > + > > quartz-load-femtofarads: > > description: > > The capacitive load of the quartz(x-tal), expressed in femto > > -- > > 2.30.2 > >
On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > On Tue, 8 Aug 2023 12:21:24 +0100 > Conor Dooley <conor@kernel.org> wrote: > > > Hey Hugo, > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > These properties can be defined in the board's device tree to set the > > > default power-on values for battery-related functions. > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > --- > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > 1 file changed, 19 insertions(+) > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > index efb66df82782..0217d229e3fa 100644 > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > @@ -26,6 +26,25 @@ properties: > > > 0: not chargeable > > > 1: chargeable > > > > > > + battery-low-detect: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + enum: [0, 1] > > > + description: | > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > + used to configure the battery low detection reporting function: > > > + 0: disabled > > > + 1: enabled > > > + > > > + battery-switch-over: > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > + enum: [0, 1] > > > + description: | > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > + used to configure the battery switch over when the main voltage source is > > > + turned off: > > > + 0: disabled > > > + 1: enabled > > > > Why are these implemented as enums? This seems to fall into the category > > of using DT to determine software policy - why's it not sufficient to > > have boolean properties that indicate hardware support and let the software > > decide what to do with them? > > Hi Conor, > the reason is that I based the new properties on the existing property > "aux-voltage-chargeable": > > ------------------- > aux-voltage-chargeable: > $ref: /schemas/types.yaml#/definitions/uint32 > enum: [0, 1] > description: | > Tells whether the battery/supercap of the RTC (if any) is > chargeable or not: > 0: not chargeable > 1: chargeable > ------------------- > > I agree with you that a boolean would be more appropriate. Should I > also submit a (separate) patch to fix the "aux-voltage-chargeable" > property to a boolean? > No, this is an enum on purpose. I will not take battery switch over related properties, this is not hardware description but software configuration. There is an ioctl for this. > Hugo. > > > > Thanks, > > Conor. > > > > > + > > > quartz-load-femtofarads: > > > description: > > > The capacitive load of the quartz(x-tal), expressed in femto > > > -- > > > 2.30.2 > > >
On Tue, 8 Aug 2023 14:32:26 +0200 Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > On Tue, 8 Aug 2023 12:21:24 +0100 > > Conor Dooley <conor@kernel.org> wrote: > > > > > Hey Hugo, > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > These properties can be defined in the board's device tree to set the > > > > default power-on values for battery-related functions. > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > --- > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > 1 file changed, 19 insertions(+) > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > index efb66df82782..0217d229e3fa 100644 > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > @@ -26,6 +26,25 @@ properties: > > > > 0: not chargeable > > > > 1: chargeable > > > > > > > > + battery-low-detect: > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > + enum: [0, 1] > > > > + description: | > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > + used to configure the battery low detection reporting function: > > > > + 0: disabled > > > > + 1: enabled > > > > + > > > > + battery-switch-over: > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > + enum: [0, 1] > > > > + description: | > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > + used to configure the battery switch over when the main voltage source is > > > > + turned off: > > > > + 0: disabled > > > > + 1: enabled > > > > > > Why are these implemented as enums? This seems to fall into the category > > > of using DT to determine software policy - why's it not sufficient to > > > have boolean properties that indicate hardware support and let the software > > > decide what to do with them? > > > > Hi Conor, > > the reason is that I based the new properties on the existing property > > "aux-voltage-chargeable": > > > > ------------------- > > aux-voltage-chargeable: > > $ref: /schemas/types.yaml#/definitions/uint32 > > enum: [0, 1] > > description: | > > Tells whether the battery/supercap of the RTC (if any) is > > chargeable or not: > > 0: not chargeable > > 1: chargeable > > ------------------- > > > > I agree with you that a boolean would be more appropriate. Should I > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > property to a boolean? > > > > No, this is an enum on purpose. > I will not take battery switch over related properties, this is not > hardware description but software configuration. There is an ioctl for > this. Hi Alexandre, can you suggest then how we can set default PWRMNG values for the PCF2131 then? I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an ioctl to activate the battery switch over function, nor one to activate the battery-low detection... Thank you, Hugo. > > > Hugo. > > > > > > > Thanks, > > > Conor. > > > > > > > + > > > > quartz-load-femtofarads: > > > > description: > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > -- > > > > 2.30.2 > > > > > > -- > Alexandre Belloni, co-owner and COO, Bootlin > Embedded Linux and Kernel engineering > https://bootlin.com
On Tue, 8 Aug 2023 08:44:26 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 8 Aug 2023 14:32:26 +0200 > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > Hey Hugo, > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > default power-on values for battery-related functions. > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > --- > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > @@ -26,6 +26,25 @@ properties: > > > > > 0: not chargeable > > > > > 1: chargeable > > > > > > > > > > + battery-low-detect: > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > + enum: [0, 1] > > > > > + description: | > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > + used to configure the battery low detection reporting function: > > > > > + 0: disabled > > > > > + 1: enabled > > > > > + > > > > > + battery-switch-over: > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > + enum: [0, 1] > > > > > + description: | > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > + used to configure the battery switch over when the main voltage source is > > > > > + turned off: > > > > > + 0: disabled > > > > > + 1: enabled > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > of using DT to determine software policy - why's it not sufficient to > > > > have boolean properties that indicate hardware support and let the software > > > > decide what to do with them? > > > > > > Hi Conor, > > > the reason is that I based the new properties on the existing property > > > "aux-voltage-chargeable": > > > > > > ------------------- > > > aux-voltage-chargeable: > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > enum: [0, 1] > > > description: | > > > Tells whether the battery/supercap of the RTC (if any) is > > > chargeable or not: > > > 0: not chargeable > > > 1: chargeable > > > ------------------- > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > property to a boolean? > > > > > > > No, this is an enum on purpose. > > I will not take battery switch over related properties, this is not > > hardware description but software configuration. There is an ioctl for > > this. > > Hi Alexandre, > can you suggest then how we can set default PWRMNG values for the > PCF2131 then? > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > ioctl to activate the battery switch over function, nor one to activate > the battery-low detection... Ping... > Thank you, > Hugo. > > > > > > > Hugo. > > > > > > > > > > Thanks, > > > > Conor. > > > > > > > > > + > > > > > quartz-load-femtofarads: > > > > > description: > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > -- > > > > > 2.30.2 > > > > > > > > > -- > > Alexandre Belloni, co-owner and COO, Bootlin > > Embedded Linux and Kernel engineering > > https://bootlin.com
On Tue, 5 Sep 2023 11:30:58 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 8 Aug 2023 08:44:26 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > Hey Hugo, > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > --- > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > 0: not chargeable > > > > > > 1: chargeable > > > > > > > > > > > > + battery-low-detect: > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > + enum: [0, 1] > > > > > > + description: | > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > + used to configure the battery low detection reporting function: > > > > > > + 0: disabled > > > > > > + 1: enabled > > > > > > + > > > > > > + battery-switch-over: > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > + enum: [0, 1] > > > > > > + description: | > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > + turned off: > > > > > > + 0: disabled > > > > > > + 1: enabled > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > have boolean properties that indicate hardware support and let the software > > > > > decide what to do with them? > > > > > > > > Hi Conor, > > > > the reason is that I based the new properties on the existing property > > > > "aux-voltage-chargeable": > > > > > > > > ------------------- > > > > aux-voltage-chargeable: > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > enum: [0, 1] > > > > description: | > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > chargeable or not: > > > > 0: not chargeable > > > > 1: chargeable > > > > ------------------- > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > property to a boolean? > > > > > > > > > > No, this is an enum on purpose. > > > I will not take battery switch over related properties, this is not > > > hardware description but software configuration. There is an ioctl for > > > this. > > > > Hi Alexandre, > > can you suggest then how we can set default PWRMNG values for the > > PCF2131 then? > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > ioctl to activate the battery switch over function, nor one to activate > > the battery-low detection... > > Ping... Second ping... Hugo. > > Thank you, > > Hugo. > > > > > > > > > > > Hugo. > > > > > > > > > > > > > Thanks, > > > > > Conor. > > > > > > > > > > > + > > > > > > quartz-load-femtofarads: > > > > > > description: > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > -- > > > > > > 2.30.2 > > > > > > > > > > > > -- > > > Alexandre Belloni, co-owner and COO, Bootlin > > > Embedded Linux and Kernel engineering > > > https://bootlin.com >
On Tue, 5 Sep 2023 11:30:58 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 8 Aug 2023 08:44:26 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > Hey Hugo, > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > --- > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > 0: not chargeable > > > > > > 1: chargeable > > > > > > > > > > > > + battery-low-detect: > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > + enum: [0, 1] > > > > > > + description: | > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > + used to configure the battery low detection reporting function: > > > > > > + 0: disabled > > > > > > + 1: enabled > > > > > > + > > > > > > + battery-switch-over: > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > + enum: [0, 1] > > > > > > + description: | > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > + turned off: > > > > > > + 0: disabled > > > > > > + 1: enabled > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > have boolean properties that indicate hardware support and let the software > > > > > decide what to do with them? > > > > > > > > Hi Conor, > > > > the reason is that I based the new properties on the existing property > > > > "aux-voltage-chargeable": > > > > > > > > ------------------- > > > > aux-voltage-chargeable: > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > enum: [0, 1] > > > > description: | > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > chargeable or not: > > > > 0: not chargeable > > > > 1: chargeable > > > > ------------------- > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > property to a boolean? > > > > > > > > > > No, this is an enum on purpose. > > > I will not take battery switch over related properties, this is not > > > hardware description but software configuration. There is an ioctl for > > > this. > > > > Hi Alexandre, > > can you suggest then how we can set default PWRMNG values for the > > PCF2131 then? > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > ioctl to activate the battery switch over function, nor one to activate > > the battery-low detection... > > Ping... Second ping... Hugo. > > Thank you, > > Hugo. > > > > > > > > > > > Hugo. > > > > > > > > > > > > > Thanks, > > > > > Conor. > > > > > > > > > > > + > > > > > > quartz-load-femtofarads: > > > > > > description: > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > -- > > > > > > 2.30.2 > > > > > > > > > > > > -- > > > Alexandre Belloni, co-owner and COO, Bootlin > > > Embedded Linux and Kernel engineering > > > https://bootlin.com >
On Tue, 19 Sep 2023 11:34:23 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 5 Sep 2023 11:30:58 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 8 Aug 2023 08:44:26 -0400 > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > > > Hey Hugo, > > > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > --- > > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > > 0: not chargeable > > > > > > > 1: chargeable > > > > > > > > > > > > > > + battery-low-detect: > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > + enum: [0, 1] > > > > > > > + description: | > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > + used to configure the battery low detection reporting function: > > > > > > > + 0: disabled > > > > > > > + 1: enabled > > > > > > > + > > > > > > > + battery-switch-over: > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > + enum: [0, 1] > > > > > > > + description: | > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > > + turned off: > > > > > > > + 0: disabled > > > > > > > + 1: enabled > > > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > > have boolean properties that indicate hardware support and let the software > > > > > > decide what to do with them? > > > > > > > > > > Hi Conor, > > > > > the reason is that I based the new properties on the existing property > > > > > "aux-voltage-chargeable": > > > > > > > > > > ------------------- > > > > > aux-voltage-chargeable: > > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > > enum: [0, 1] > > > > > description: | > > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > > chargeable or not: > > > > > 0: not chargeable > > > > > 1: chargeable > > > > > ------------------- > > > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > > property to a boolean? > > > > > > > > > > > > > No, this is an enum on purpose. > > > > I will not take battery switch over related properties, this is not > > > > hardware description but software configuration. There is an ioctl for > > > > this. > > > > > > Hi Alexandre, > > > can you suggest then how we can set default PWRMNG values for the > > > PCF2131 then? > > > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > > ioctl to activate the battery switch over function, nor one to activate > > > the battery-low detection... > > > > Ping... > > Second ping... > > Hugo. Third ping... Hugo. > > > > > Thank you, > > > Hugo. > > > > > > > > > > > > > > > Hugo. > > > > > > > > > > > > > > > > Thanks, > > > > > > Conor. > > > > > > > > > > > > > + > > > > > > > quartz-load-femtofarads: > > > > > > > description: > > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > > -- > > > > > > > 2.30.2 > > > > > > > > > > > > > > > -- > > > > Alexandre Belloni, co-owner and COO, Bootlin > > > > Embedded Linux and Kernel engineering > > > > https://bootlin.com > >
On Tue, 19 Sep 2023 11:34:23 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 5 Sep 2023 11:30:58 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 8 Aug 2023 08:44:26 -0400 > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > > > Hey Hugo, > > > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > --- > > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > > 0: not chargeable > > > > > > > 1: chargeable > > > > > > > > > > > > > > + battery-low-detect: > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > + enum: [0, 1] > > > > > > > + description: | > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > + used to configure the battery low detection reporting function: > > > > > > > + 0: disabled > > > > > > > + 1: enabled > > > > > > > + > > > > > > > + battery-switch-over: > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > + enum: [0, 1] > > > > > > > + description: | > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > > + turned off: > > > > > > > + 0: disabled > > > > > > > + 1: enabled > > > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > > have boolean properties that indicate hardware support and let the software > > > > > > decide what to do with them? > > > > > > > > > > Hi Conor, > > > > > the reason is that I based the new properties on the existing property > > > > > "aux-voltage-chargeable": > > > > > > > > > > ------------------- > > > > > aux-voltage-chargeable: > > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > > enum: [0, 1] > > > > > description: | > > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > > chargeable or not: > > > > > 0: not chargeable > > > > > 1: chargeable > > > > > ------------------- > > > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > > property to a boolean? > > > > > > > > > > > > > No, this is an enum on purpose. > > > > I will not take battery switch over related properties, this is not > > > > hardware description but software configuration. There is an ioctl for > > > > this. > > > > > > Hi Alexandre, > > > can you suggest then how we can set default PWRMNG values for the > > > PCF2131 then? > > > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > > ioctl to activate the battery switch over function, nor one to activate > > > the battery-low detection... > > > > Ping... > > Second ping... > > Hugo. Third ping... Hugo. > > > > > Thank you, > > > Hugo. > > > > > > > > > > > > > > > Hugo. > > > > > > > > > > > > > > > > Thanks, > > > > > > Conor. > > > > > > > > > > > > > + > > > > > > > quartz-load-femtofarads: > > > > > > > description: > > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > > -- > > > > > > > 2.30.2 > > > > > > > > > > > > > > > -- > > > > Alexandre Belloni, co-owner and COO, Bootlin > > > > Embedded Linux and Kernel engineering > > > > https://bootlin.com > >
On Wed, 11 Oct 2023 18:23:30 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 19 Sep 2023 11:34:23 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 5 Sep 2023 11:30:58 -0400 > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > On Tue, 8 Aug 2023 08:44:26 -0400 > > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > > > > > Hey Hugo, > > > > > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > --- > > > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > > > 0: not chargeable > > > > > > > > 1: chargeable > > > > > > > > > > > > > > > > + battery-low-detect: > > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > > + enum: [0, 1] > > > > > > > > + description: | > > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > > + used to configure the battery low detection reporting function: > > > > > > > > + 0: disabled > > > > > > > > + 1: enabled > > > > > > > > + > > > > > > > > + battery-switch-over: > > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > > + enum: [0, 1] > > > > > > > > + description: | > > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > > > + turned off: > > > > > > > > + 0: disabled > > > > > > > > + 1: enabled > > > > > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > > > have boolean properties that indicate hardware support and let the software > > > > > > > decide what to do with them? > > > > > > > > > > > > Hi Conor, > > > > > > the reason is that I based the new properties on the existing property > > > > > > "aux-voltage-chargeable": > > > > > > > > > > > > ------------------- > > > > > > aux-voltage-chargeable: > > > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > enum: [0, 1] > > > > > > description: | > > > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > > > chargeable or not: > > > > > > 0: not chargeable > > > > > > 1: chargeable > > > > > > ------------------- > > > > > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > > > property to a boolean? > > > > > > > > > > > > > > > > No, this is an enum on purpose. > > > > > I will not take battery switch over related properties, this is not > > > > > hardware description but software configuration. There is an ioctl for > > > > > this. > > > > > > > > Hi Alexandre, > > > > can you suggest then how we can set default PWRMNG values for the > > > > PCF2131 then? > > > > > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > > > ioctl to activate the battery switch over function, nor one to activate > > > > the battery-low detection... > > > > > > Ping... > > > > Second ping... > > > > Hugo. > > Third ping... Hi Alexandre, Fourth ping... People are writing to me off the mailing list to indicate that there is a "bug" with the PCF2131 driver relating to PWRMNG incorrect values. Can you answer my question so that we can find a solution to this problem? Hugo. > > > > > > > > + > > > > > > > > quartz-load-femtofarads: > > > > > > > > description: > > > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > > > -- > > > > > > > > 2.30.2 > > > > > > > > > > > > > > > > > > -- > > > > > Alexandre Belloni, co-owner and COO, Bootlin > > > > > Embedded Linux and Kernel engineering > > > > > https://bootlin.com > > >
On Wed, 11 Oct 2023 18:23:30 -0400 Hugo Villeneuve <hugo@hugovil.com> wrote: > On Tue, 19 Sep 2023 11:34:23 -0400 > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > On Tue, 5 Sep 2023 11:30:58 -0400 > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > On Tue, 8 Aug 2023 08:44:26 -0400 > > > Hugo Villeneuve <hugo@hugovil.com> wrote: > > > > > > > On Tue, 8 Aug 2023 14:32:26 +0200 > > > > Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > > > > > > > > On 08/08/2023 08:25:33-0400, Hugo Villeneuve wrote: > > > > > > On Tue, 8 Aug 2023 12:21:24 +0100 > > > > > > Conor Dooley <conor@kernel.org> wrote: > > > > > > > > > > > > > Hey Hugo, > > > > > > > > > > > > > > On Wed, Aug 02, 2023 at 03:11:52PM -0400, Hugo Villeneuve wrote: > > > > > > > > From: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > > > > > > > > > These properties can be defined in the board's device tree to set the > > > > > > > > default power-on values for battery-related functions. > > > > > > > > > > > > > > > > Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> > > > > > > > > --- > > > > > > > > .../devicetree/bindings/rtc/rtc.yaml | 19 +++++++++++++++++++ > > > > > > > > 1 file changed, 19 insertions(+) > > > > > > > > > > > > > > > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > index efb66df82782..0217d229e3fa 100644 > > > > > > > > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > > > > > > > > @@ -26,6 +26,25 @@ properties: > > > > > > > > 0: not chargeable > > > > > > > > 1: chargeable > > > > > > > > > > > > > > > > + battery-low-detect: > > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > > + enum: [0, 1] > > > > > > > > + description: | > > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > > + used to configure the battery low detection reporting function: > > > > > > > > + 0: disabled > > > > > > > > + 1: enabled > > > > > > > > + > > > > > > > > + battery-switch-over: > > > > > > > > + $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > > > + enum: [0, 1] > > > > > > > > + description: | > > > > > > > > + For RTC devices supporting a backup battery/supercap, this flag can be > > > > > > > > + used to configure the battery switch over when the main voltage source is > > > > > > > > + turned off: > > > > > > > > + 0: disabled > > > > > > > > + 1: enabled > > > > > > > > > > > > > > Why are these implemented as enums? This seems to fall into the category > > > > > > > of using DT to determine software policy - why's it not sufficient to > > > > > > > have boolean properties that indicate hardware support and let the software > > > > > > > decide what to do with them? > > > > > > > > > > > > Hi Conor, > > > > > > the reason is that I based the new properties on the existing property > > > > > > "aux-voltage-chargeable": > > > > > > > > > > > > ------------------- > > > > > > aux-voltage-chargeable: > > > > > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > > > enum: [0, 1] > > > > > > description: | > > > > > > Tells whether the battery/supercap of the RTC (if any) is > > > > > > chargeable or not: > > > > > > 0: not chargeable > > > > > > 1: chargeable > > > > > > ------------------- > > > > > > > > > > > > I agree with you that a boolean would be more appropriate. Should I > > > > > > also submit a (separate) patch to fix the "aux-voltage-chargeable" > > > > > > property to a boolean? > > > > > > > > > > > > > > > > No, this is an enum on purpose. > > > > > I will not take battery switch over related properties, this is not > > > > > hardware description but software configuration. There is an ioctl for > > > > > this. > > > > > > > > Hi Alexandre, > > > > can you suggest then how we can set default PWRMNG values for the > > > > PCF2131 then? > > > > > > > > I looked at Documentation/ABI/testing/rtc-cdev but couldn't find an > > > > ioctl to activate the battery switch over function, nor one to activate > > > > the battery-low detection... > > > > > > Ping... > > > > Second ping... > > > > Hugo. > > Third ping... Hi Alexandre, Fourth ping... People are writing to me off the mailing list to indicate that there is a "bug" with the PCF2131 driver relating to PWRMNG incorrect values. Can you answer my question so that we can find a solution to this problem? Hugo. > > > > > > > > + > > > > > > > > quartz-load-femtofarads: > > > > > > > > description: > > > > > > > > The capacitive load of the quartz(x-tal), expressed in femto > > > > > > > > -- > > > > > > > > 2.30.2 > > > > > > > > > > > > > > > > > > -- > > > > > Alexandre Belloni, co-owner and COO, Bootlin > > > > > Embedded Linux and Kernel engineering > > > > > https://bootlin.com > > >
diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml index efb66df82782..0217d229e3fa 100644 --- a/Documentation/devicetree/bindings/rtc/rtc.yaml +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml @@ -26,6 +26,25 @@ properties: 0: not chargeable 1: chargeable + battery-low-detect: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + For RTC devices supporting a backup battery/supercap, this flag can be + used to configure the battery low detection reporting function: + 0: disabled + 1: enabled + + battery-switch-over: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: | + For RTC devices supporting a backup battery/supercap, this flag can be + used to configure the battery switch over when the main voltage source is + turned off: + 0: disabled + 1: enabled + quartz-load-femtofarads: description: The capacitive load of the quartz(x-tal), expressed in femto